Database: ODBC remote access SQL Server2008 in oracel

The deployment of the hospital medical record system is ORACLE 11G,his The system is deployed SQL SERVER2008, Now when the medical record is reported, the doctor's ID card field is added in the provincial platform interface . But the hospital staff information is maintained in his Medium . When querying medical records, you call ORACLE View in , Also, the link mode of the previous two databases has not been found , I tried it ODBC visit . In the process of finding information , Found that online blogs often put transparent gateways （gateway) Configuration and ODBC Confusion and unclear description of relevant parameters , Record here ：

Environmental statement ：

Medical record server OS：windows    server  2016

Medical record database ： ORACLE   11G

HIS The server OS：windows    server  2016

HIS database ：SQL SERVER2008

First step ： To configure ODBC

1）win+r Search for ODBC the reason being that 64 Bit system , So choose ODBC Data management program （64 position )

2) System DSN-----》 add to

         

    I've configured it here before , Just choose this click configuration to show you a process , You choose to add

  

 

 

 

 

The second step ： Check and configure dg4odbc

        Get into dos Window run   dg4odbc See if the following occurs ：

  If yes, it means dg4odbc Driver installed successfully , If the prompt system does not have this command , Then you can go to E:\app\Administrator\product\11.2.0\dbhome_1\BIN  oracle Check whether the tool is available under the installation directory , If yes, it is not configured windows System environment variable , Then just add the path to PAT Environment variable

The third step ： To configure initodbc.ora

        To this path ：E:\app\Administrator\product\11.2.0\dbhome_1\hs\admin find  initdg4odbc.ora file , Make a backup , Then change a name （ Can be specified by yourself , But the name will be used later ）, I am more famous myself initodbc_sql, Then go in and configure ：

Step four ： To configure linstener.ora

      Configure the listening information under this path ：E:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN

You can put the source linstener.ora File backup rename , Easy to restore in case of error . The configuration is as follows ：

Step five ： Restart monitoring service

    Enter into dos And then execute ：

        lsnrctl    stop

        lsnrctl    start

Pay attention to whether the command is executed successfully , If the step is successful , Please check the above two configuration files

Step six ： To configure DBLINK

To oracle Of SQL The window executes the following statement ：

establish DBLINK：
create public database link  The link name specified by yourself  connect to  User name of the connected database  identified by Password of the connected database  using '(description=
        (address= (protocol=tcp)(host=127.0.0.1)(port=1521)) 
        (connect_data=(SID=odbc_sql))    ---- Your configuration file is initodbc_sql.ora, So here is odbc_sql
        (HS=OK)
)';

remarks ： Some of the blog host Fill in oracle Server for ip Address , It's OK , I filled in here oracle The loopback address of the server is the same .port If the port is occupied, fill in 1522, Of course, I'm not occupied here , Just use the default 1521

Inquire about DBLINK Whether the creation was successfully executed ：

select * from dba_objects where object_type='DATABASE LINK';

If you find the information, it means that the creation is successful .

If you don't need to DBLINK You can also execute the following statement to delete ：

drop   public   database link    The link name specified by yourself

Step seven ： Verify access

select    Field      from     SQL SERVER Database form name / View @ The link name specified by yourself

eg:

SELECT   USER_ID,UESR_NAME,IDCARD from  [email protected]